Perhaps you should try some spelling variations:
thieu hanh » thien thanh, thien chanh, thieu khang
cua triet » cua viet, su triet, va triet
toc sach » hoc sach, doc sach, thuoc sach
hanh cua » manh cua, hang cua, hanh sua
cac nuoc » cap nuoc, hoc nuoc, dat nuoc
hanh lai » hanh lam, hanh tai, thanh lap
cua hoi » cua moi
hieu va » lieu va, hieu qua
cac tuc » cac toc, cac tu, cac tac
xa hanh » xa thanh, xa khanh, va hanh
lai cua » dai cua, hai cua, lai chau

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: toc sach thieu hanh cua hoi. hieu va ((cac tuc) or (cac nuoc)) xa hanh lai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach thieu hanh cua hoi. hieu va ((cac tuc) OR (cac nuoc)) xa hanh lai cua triet.
• Adding a wildcard symbol may retrieve word variants: toc sach thieu hanh cua hoi. hieu va ((cac tuc) or (cac nuoc)) xa hanh lai cua triet*.